GB624750A - Magnetic cores, especially designed for high frequency apparatus and method for the manufacture of said cores - Google Patents

Magnetic cores, especially designed for high frequency apparatus and method for the manufacture of said cores

Info

Publication number
GB624750A
GB624750A GB10771/47A GB1077147A GB624750A GB 624750 A GB624750 A GB 624750A GB 10771/47 A GB10771/47 A GB 10771/47A GB 1077147 A GB1077147 A GB 1077147A GB 624750 A GB624750 A GB 624750A
Authority
GB
United Kingdom
Prior art keywords
mixture
magnetic
cores
manufacture
high frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB10771/47A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PIERRE LOUIS MARIE HATTE
Original Assignee
PIERRE LOUIS MARIE HATTE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PIERRE LOUIS MARIE HATTE filed Critical PIERRE LOUIS MARIE HATTE
Publication of GB624750A publication Critical patent/GB624750A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • H01F1/26—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances

Abstract

624,750. Magnetic dust cores. HATTE, P. L. M. April 22, 1947, No. 10771. Convention date, March 3. [Class 38 (ii)] A magnetic core is made from a mixture of magnetic material such as iron powder and a superpolyamide such as nylon, or a mixture of superpolyamides. The substantially insoluble superpolyamide is suspended in colloidal form in a liquid such as a 4 : 1 mixture of alcohol and water at 250‹ F. and one atmosphere pressure, then cooled and the resulting gel mixed in a heated mixer with the magnetic powder. The mixture is precipitated by cooling, rolled between smooth or fluted rollers, dried, crushed, and moulded in a press. The crushing may be replaced by cutting it with a rotating knife, as it is extruded from a forming machine.
GB10771/47A 1947-03-03 1947-04-22 Magnetic cores, especially designed for high frequency apparatus and method for the manufacture of said cores Expired GB624750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR624750X 1947-03-03

Publications (1)

Publication Number Publication Date
GB624750A true GB624750A (en) 1949-06-15

Family

ID=8987283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10771/47A Expired GB624750A (en) 1947-03-03 1947-04-22 Magnetic cores, especially designed for high frequency apparatus and method for the manufacture of said cores

Country Status (1)

Country Link
GB (1) GB624750A (en)

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